The objective of this study was to estimate the correlation coefficients (genotypic, phenotypic and environmental) and carry out path analysis between grain yield in kg ha-1 (basic variable) and its primary components (explicative variables). The experiments, in randomized complete blocks with three replications, were carried out in Vegetable Research Farm, Banaras Hindu University, Varanasi. Twenty six winged bean genotypes were studied for correlation and path analysis. Yield per plant and number of pods were explicative variables included in the study that presented the best combinations of path coefficient and correlation, both positive and of high magnitude, and both were superior to that of the variable number of seeds per pod. The explicative variable weight of 100 seeds correlated negatively with grain yield, although its path coefficient was positive, thus suggesting that it should be considered in breeding studies to increase grain yield.